body {
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #dfe6e9; /* 背景颜色 */
}

.container {
    position: relative;
    width: 640px;
    height: 1030px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.image {
    position: absolute;
    width: 100%;
    height: 100%;
    transition: opacity 0.5s ease-in-out;
}

.hidden {
    opacity: 0;
    pointer-events: none;
}

.audio-control.hidden {
    display: none;
}

#watch-button {
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #997053; /* 按钮背景颜色 */
    color: white;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 5px;
    font-size: 1.2em;
    z-index: 5; /* 确保按钮在最上层 */
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

#watch-button:hover {
    background-color: #7d5d3b; /* 鼠标悬停时的背景颜色 */
}

@keyframes moveUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

@keyframes moveDown {
    from { transform: translateY(-100%); }
    to { transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

#image1-2.show {
    animation: moveUp 2s forwards;
}

#image1-3.show {
    animation: moveDown 1.5s forwards;
}

#image1-4.show {
    animation: fadeIn 2s forwards;
}

.button_2 {
    width: 50px; /* 按钮宽度 */
    height: 50px; /* 按钮高度 */
    background-color: gray;
    border-radius: 50%; /* 使按钮呈现圆形 */
    position: absolute; /* 绝对定位 */
    cursor: pointer;
}

/* 悬停时的样式 */
.button_2:hover {
    background-color: #cf556c;
}

.fade-in {
    animation: fadeIn 1.5s forwards;
}
.close-button {
    width: 40px; /* 按钮宽度 */
    height: 40px; /* 按钮高度 */
    line-height: 35px; /* 使文字垂直居中 */
    padding-left: 10px;/* 添加左内边距 */
    background-color: gray; /* 关闭按钮颜色 */
    border-radius: 50%; /* 使按钮呈现圆形 */
    position: absolute; /* 绝对定位 */
    cursor: pointer;
    top: 33%;
    right: 14%; /* 调整关闭按钮位置 */
}

.button_22:hover {
    background-color: #cf556c;
}
.additional-button2 {
    position: absolute;
    top: 22%; /* 调整按钮距离顶部的距离 */
    left: 59%; /* 调整按钮距离左侧的距离 */
    background-color: #8e9174; /* 按钮背景颜色 */
    padding: 5px 10px; /* 按钮内边距 */
    border-radius: 5px; /* 按钮圆角 */
    cursor: pointer;
    font-size: 0.8em; /* 按钮字体大小 */
}
.additional-button2:hover {
    background-color: #aaa; /* 鼠标悬停时的背景颜色 */
}
.additional-button1 {
    position: absolute;
    top: 24%; /* 调整按钮距离顶部的距离 */
    left: 38%; /* 调整按钮距离左侧的距离 */
    background-color: #8e9174; /* 按钮背景颜色 */
    padding: 5px 10px; /* 按钮内边距 */
    border-radius: 5px; /* 按钮圆角 */
    cursor: pointer;
    font-size: 0.8em; /* 按钮字体大小 */
}
.additional-button1:hover {
    background-color: #aaa; /* 鼠标悬停时的背景颜色 */
}

